Neurons "talk" to each other chemically when which of the following are released?

Which of the following students provides the most accurate statement about the research on mental imagery?

a. Susan: "There is a negative correlation between the size of a mental rotation and the number of seconds required to perform that mental rotation." b. Shirin: "When people make judgments about the shapes of U.S. states, their judgments for mental images are similar to their judgments for physical stimuli." c. Dirk: "In general, the research on mental imagery supports the propositional perspective on mental imagery, rather than the analog perspective." d. Cyndi: "People make judgments about complex mental shapes in roughly the same way as they make judgments about complex physical shapes; but this similarity doesn't hold true for simple mental shapes."

Although it is difficult to determine precisely how much of personality is determined by genetics, the results of twin studies suggest that genetics probably accounts for about _______ percent of the variance of adult personality

A. 85 B. 60 C. 40 D. 5

Psychologists use the term behavior to refer:

a. only to obvious actions, such as moving about or talking b. only to physiological processes, such as the activity of the brain cells c. to anything that can be observed and measured in a systematic way d. to anything people or animals do or experience

In May's view, scientists should:

a. study issues using methodology borrowed from physics or physiology b. study problems that are meaningful using methods that can help solve them c. always assume that science is value-free and totally objective d. rely heavily on the descriptive orientation used in astronomy